Extremely High Q-factor metamaterials due to Anapole Excitation
Classical Physics
2017-01-11 v1 Optics
Abstract
We demonstrate that ideal anapole metamaterials have infinite Q-factor. We have designed and fabricated a metamaterial consisting of planar metamolecules which exhibit anapole behavior in the sense that the electric dipole radiation is almost cancelled by the toroidal dipole one, producing thus an extremely high Q-factor at the resonance frequency. The size of the system, at the mm range, and the parasitic magnetic quadrupole radiation are the factors limiting the size of the Q-factor. In spite of the very low radiation losses the local fields at the metamolecules are extremely high, of the order of higher than the external incoming field.
Keywords
Cite
@article{arxiv.1608.03233,
title = {Extremely High Q-factor metamaterials due to Anapole Excitation},
author = {Alexey A. Basharin and Vitaly Chuguevsky and Nikita Volsky and Maria Kafesaki and Eleftherios N. Economou},
journal= {arXiv preprint arXiv:1608.03233},
year = {2017}
}